Question #4b5af

1 Answer
Martin C.
Jan 30, 2018

#12+4x#

Explanation:

If you mean by 2x3 -> #2*3#
#(2*3+10x-3)-1/2(12x-6*3)#
First, we calculate the products, then we add and we simplify the second bracket.
#(2*3+10x-3)-1/2(12x-6*3)#
#=6+10x-3-1/2(12x-18)#
#=3+10x-1/2*12x-1/2*(-18)#
#=3+10x-6x+9#
#=12+4x#

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